ans this ques part 2

[dentindi]

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The posterior belly of the digastric is supplied by which of the following nerves?
Vagus
Facial
Trigeminal
Cervical spinal
Inferior alveolar
Which of the following pairs of amino acids is expected to be found on the interior of a globular protein?
Lysine and arginine
Arginine and leucine
Leucine and valine
Valine and glutamic acid
Glutamic acid and lysine

Which of the following conditions might be an initial manifestation of early, acute HIV infection?
Kaposi's sarcoma
Wasting syndrome
Oral hairy leukoplakia
Monoeucleosis-like syndrome
Pneumocystis carinii pneumonia
Which of the following primary teeth has a distinctly prominent facial cervical ridge that makes it different from other teeth?
Maxillary canine
Mandibular canine
Mandibular first molar
Maxillary second molar
Maxillary central incisor
An anemic individual is expected to have which of the following conditions in systemic arterial blood?
Elevated Normal
Elevated Reduced
Reduced Normal
Normal Reduced
Reduced Reduced
In the presence of sucrose, Streptococcus mutans produces
L-forms
Very long chains of cocci
Regular diploid paris rather than chains
Deposits of a gummy polysaccharide called glucan
A very thick wall of muramic acid and mucopeptide substances
Which of the following properties do mast cells and basophils have in common?
Found in blood
Develop from lymphocytes
Secrete heparin and histamine
Decrease during time of infection
Migrate to line the inside of blood vessels
Protein and RNA synthesis occur in each of the following phases of the cell cycle EXCEPT one. Which one is this EXCEPTION?
G0
G1
S
G2
M
Each of the following is attributable to hepatic failure EXCEPT one. Which one is this EXCEPTION?
Tremor
Gynecomastia
Mallory bodies
Hypoalbuminemia
Spider telangiectasia
As viewed from the lingual, the lingual cusp of a maxillary first premolar is inclined
Distally
Mesially
Distofacially
Mesiolingually
Directly over the center mesiodistally
Gram-positive cell walls differ form gram-negative cell walls in that gram-positive cell walls uniquely contain
Teichoic acids
Lipopolysaccharides
Acid-fast lipids
Endotoxins
The main route of calcium excretion from a normal human adult is
Urine
Sweat
Saliva
Feces
Tears
The parotid duct crosses the
Temporalis
Facial artery
Masseter muscle
Zygomaticus major
Lateral pterygoid
The cusp of Carabelli occurs with sufficient frequency to be considered normal in which of the following molars?
Primary maxillary first
Primary maxillary second
Mandibular first
Maxillary second
Which of the following temporomandibular joint ligaments restricts the movement of the disc away from the condyle during function?
Discal
Stylomandibular
Temporomandibular
Sphenomandibular
A patient who has anemia, poorly localized abdominal pain, and wrist and foot drop probably is manifesting a toxic state induced by which of the following?
Heroin
Cocaine
Bismuth
Mercury
Lead
Which of the following is a ketone body?
Glycerol
Glucagon
Acetyl CoA
Acetoacetate
Phophatidylcholine
Inorganic crystals in enamel have their long axes parallel to the rods in which of the following?
Centers of the bodies of the rods only
Periphery of the bodies of the rods only
Bodies of the rods and deviating increasingly in the tails
Tails of the rods and deviating increasingly from the centers of the bodies to the periphery
Tails of the rods and deviating increasingly from the periphery of the bodies to the centers
#220 (Also 206) does not have the needed picture
The presence of mamelons in a 10-year-old patient suggests which of the following conditions?
Fluorosis
Malnutrition
Malformation
Anterior open bite
Retained primary teeth
Which of the following pathogens is MOST often associated with infective endocarditis?
Pneumococci
Group A streptococci
Group B streptococci
Alpha hemolytic streptococci
Beta hemolytic streptococci
Which of the following coenzymes is required for the synthesis of pyrimidines, such as thymine?
Niacin
Thiamine
Folic acid
Riboflavin
Pyridoxine
Each of the following venous channels has direct connections with the pterygoid venous plexus EXCEPT one. Which one is this EXCEPTION?
Maxillary vein
Vertebral artery
Deep facial vein
Infraorbital vein
Posterior superior alveolar vein
Vitamin C deficiency primarily affects which of the following tissues?
Hematopoietic
Connective
Epithelial
Muscular
Nervous
In the upper limb, which of the following represents a hallmark of lymphatic vessels?
Contain valves
Follow the veins
Always travel in pairs
Only found on the anterior surface of the limb
Contain fenestrations to allow passage of fluids into the interstitium
When viewed from the incisal aspect, each of the following features of an incisor is visible EXCEPT one. Which one is this EXCEPTION?
Cingulum
Lingual fossa
Cervical line
Marginal ridges
Mesiofacial developmental depression
Each of the following is expected to be active during fatty acid biosynthesis EXCEPT one. Which one is this EXCEPTION?
Tricarboxylic acid cycle
Pyruvate dehydrogenase
Amino acid catabolism
Beta oxidation
Glycolysis
Pain in inflamed tissues is associated with the release of which of the following mediators?
Histamine
Serotonin
Bradykinin
Leukotrienes
Complement components
Which of the following cranial nerves contains parasympathetic components?
Facial
Abducens
Trigeminal
Hypoglossal
Spinal accessory
In an ideal intercuspal position, the mesiofacial groove of a mandibular first molar opposes which part of the maxillary first molar?
Tip of the distofacial cusp
Tip of the mesiofacial cusp
Triangular ridge of the distofacial cusp
Triangular ridge of the mesiofacial cusp
Which of the following represents genes that often encode proteins necessary for antibiotic resistance, and that can change positions on a chromosome or "jump" from a plasmid to a chromosome?
Tryptophan operon
Lysogens
Prophage
Transposons
Which of the following BEST describes the major funtion of histones?
Unwind DNA
Activate genes
Stabilize DNA in a compact form
Remove exons during RNA splicing
Stabilize RNA during transcription
The thyrocervical trunk is comprised of the inferior thyroid, the transverse cervical artery, and the
Vertebral
Suprascapular
Dorsal scapular
Superior thyroid
Ascending pharyngeal
Under physiologic conditions, the LOWEST partial pressure of oxygen is found in
Expired air
Alveolar air
Venous blood
Arterial blood
Normal atmosphere air
The condyle on the laterotrusive side generally rotates about a
Sagittal axis only
Horizontal axis only
Horizontal axis and translates laterally
Vertical axis and translates laterally
Each of the following diseases is transmitted from person to person by droplets or droplet spray EXCEPT one. Which one is this EXCEPTION?
Condyloma acuminatum
Whooping cough
Meningitis
Diptheria
Pneumonia
Which of the following bones forms the roof of the orbit?
Zygomatic
Maxilla
Palatine
Sphenoid
Frontal
Which of the following describes sebaceous glands of the skin?
They are associated with hair follicles and are derived from ectoderm
They serve a secretory function in conjuction with Pacinian corpuscles
They secrete a serous material by the merocrine method
They yield a salty secretion and are derived from mesoderm
The first step in the pathway for fatty acid synthesis is catalyzed by an allosteric enzyme which is the principal regulator of the pathway. This enzyme is
Thiolase
Pyruvate carboxylase
Citrate synthetase
Acetyl CoA carboxylase
Pyruvate dehydrogenase
Which of the following is a major disadvantage of ethylene oxide sterilization?
Difficult to obtain
Very toxic to humans
Requires high temperatures (160)
Causes corrosion of metal instruments
Causes discoloration of clear plastic objects
What teeth occlude with only one opposing tooth?
Maxillary canines
Mandibular lateral incisors
Mandibular central incisors
Maxillary first premolars
Mandibular third molars
Endochondral ossification occurs in the formation of
All bones
Flat bones
Long bones
Elastic cartilage
Mesenchymal sheets
Which of the following represents the MOST common cause of bronchiolitis and pneumonia in infants?
Measles virus
Cytomegalovirus
Influenza virus
Herpes simplex virus
Respiratory syncytial virus
The developmental groove between the distofacial cusp and distal cusp of a mandibular first molar is the
Facial
Distal
Distofacial
Mesiofacial
Distal oblique
Which of the following represents the anterior boundary of the mandibular fossa of the temporal bone?
Styloid process
Articular eminence
Petrotympanic fissure
External auditory meatus
Mastoid process of temporal bone
The development of which of the following types of hepatitis depends on the host having been previously infected with hepatitis B virus?
Hepatitis A
Hepatitis C
Hepatitis D
Hepatitis E
Hepatitis G
Glucose-6-phosphatase is found associated with which of the following?
Kidneys and liver
Liver and muscle
Kidneys and brain
Kidneys and muscles
The osteoclast originates from which of the following?
Monocyte
Osteocyte
Osteoblast
Neutrophil
Bone-lining cell
Which of the following permanent roots is thin mesiodistally, wide faciolingually, and concave on both mesial and distal surfaces?
Maxillary central incisor
Mandibular central incisor
Mandibular second premolar
Facial root of a maxillary first premolar
Lingual root of a maxillary first molar
The catabolism of which of the following results in no energy production in the form of ATP?
Lipid
Protein
Nucleotide
Carbohydrate
Recovery from an infection with mumps virus confers lifelong immunity. This describes which of the following types of immunity?
Innate
Natural active
Natural passive
Artificial active
Artificial passive
Which of the following represents the structure in the maxillary alveolar bone that maxillary premolar roots occasionally penetrate?
Antrum
Nasal septum
Frontal sinus
Zygomatic arch
Mandibular fossa
The mylohyoid ridge (line) is found on which of the following portions of the mandible?
Coronoid
Neck
Ramus
Condyle
Body
Which of the following represents the portion of the bacterial endotoxin molecule that is MOST responsible for its toxic activity?
Lipid A
Protein A
O antigen
Core polysaccharide
Which of the following BEST describes restriction enzymes?
Exonucleases
Topoisomerases
Enzymes that degrade RNA
Non-specific endonucleases
Site-specific endonucleases
The contact areas of anterior teeth are incisal to the middle thirds in each of the following EXCEPT one. Which one is this EXCEPTION?
Distal contact of the maxillary canine
Mesial contact of the maxillary canine
Mesial contact of the maxillary lateral incisor
Mesial contact of the mandibular lateral incisor
Distal contact of the mandibular lateral incisor
Proteins for extracellular use can be synthesized in which of the following structures?
Nucleolemma
Mitochondria
Heterochromatin
Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Which of the following types of blotting can be used to identify DNA restriction fragments?
Eastern
Southern
Northern
Western
The unique amino acid composition of collagen is reflected in the hgih content of
Valine, threonine, an lysine
Demosine, glycine, and proline
Cysteine, tyrosine, and phenylalanine
Glycine, proline, and hydroxyproline
Cysteine, hydroxylysine, and proline
Which of the following represents the type of maxillofacial bone graft having the BEST chance of success?
Isograft
Homograft
Allograft
Autograft
Xenograft
Which of the following represents a risk factor for the development of endometrial carcinoma?
Herpes simplex virus infection
Endometriosis
Multiple leiomyomas
Multiple pregnancies
Hyperestrogenism
Which of the following vitamins is essential for the normal elaboration and maintenance of bone matrix, cartilage, and dentin?
Niacin
Vitamin E
Ascorbic acid
Pantothenic acid
Calcium stimulates muscle contraction. Its effect is mediated through binding to which of the following?
Actin
Tropomyosin
Tropinin I
Troponin C
Sarcoplasmic reticulum
Which of the following features helps to distinguish a maxillary lateral incisor from a mandibular lateral incisor? The maxillary lateral has
A thinner incisal ridge
A crown more twisted on the root
A more pronounced lingual fossa
A root that is flattened mesiodistally
A mesioincisal angle that is sharper
SEE #266 In booklet (picture)
Which of the following produce surfactant?
Monocytes
Clara cells
Goblet cells
Type I pneumocytes
Type II pneumocytes
Each of the following fluids is considered one that can transmit HIV EXCEPT one. Which one is this ESCEPTION?
Semen
Serum
Saliva
Amniotic fluid
Breast milk
When compared to a maxillary first molar, the roots of a maxillary second molar
Are longer
Are more divergent
Are fewer in number
Have less potential for fusion
Are greater in distal inclination
In right laterotrusive movement, the lingual cusp of a maxillary right second premolar passes through which of the following mandibular structures?
Facial groove of the right first molar
Lingual groove of the right first molar
Embrassure between the right first premolar and the right second premolar
Embrassure between the right second premolar and the right first molar
Which of the following is the MOST appropriate sterilization method for a heat-labile item to be used in a surgical procedure?
Dry heat
Autoclaving
Ethylene oxide
Saturated chemical vapor
Immersion in chemical sterilant
The primary function of the anterior portion of the temporalis muscle is to
Elevate the mandible only
Protrude the mandible only
Elevate and retrude the mandible
Help stabilize the articular disc
Move the mandible to the contralateral side
Bile salts are sodium salts of bile acid that are conjugated with
Cysteine and serine
Taurine and glycine
Methionine and lysine
Homocysteine and ornithine
In order for RNA oncogenic viruses to be integrated into the host genome, they must possess
Translation enzymes
Restriction endonuclease
DNA-dependent RNA polymerase
RNA-dependent DNA polymerase
On the lingual crown surface of maxillary canines, which of the following is the structure located immediately mesial to the distolingual fossa?
Cingulum
Lingual ridge
Mesiolingual fossa
Mesial marginal ridge
Distal marginal ridge
In which of the following structures are glycoproteins assembled for extracellular use?
Nucleolemma
Polyribosomes
Golgi apparatus
Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Which of the following statements BEST describes the strength of cardiac muscle contraction? It is
Decreased when extracellular Ca is increased
Increased when extracellular Ca is increased
Mainly regulated by vagal impulses
Unaffected by extracellular Ca
Mainly regulated by heart rate
Oxygen-dependant killing of bacteria by neutrophils involves each of the following EXCEPT one. Which one is this EXCEPTION?
Superoxide
Collagenase
Myeloperoxidase
Hydrogen peroxide
NADP dehydrogenase
Which of the following are the teeth whose masticatory function is primarily biting?
Incisors and canines
Incisors and premolars
Canines and premolars
Premolars and molars
Which of the following represents the predominant serum immunoglobulin found during a memory response?
IgA
IgD
IgE
IgG
s-IgA
Which of the following mechanisms operates in liver cells to regulate breakdown of glycogen?
Zymogen activation
Phophorylation of phosphorylase b to phosphorylase a
Induction of phosphorylase b by an inducer
Inhibition of adenylate cyclase
Which of the following structures can be palpated by way of the external auditory (acoustic) meatus?
Zygomatic arch
Mandibular notch
Lateral pterygoid muscle
Coronoid process of the mandible
Posterior aspect of the mandibular condyle
Which main product of protein nitrogen metabolism is found in human urine?
Urea
Ammonia
Creatine
Uric acid
Creatinine
Which of the following nerves travels form the carotid triangle into the submandibular triangle of the neck?
Lingual
Hypoglossal
Great auricular
Ansa cervicalis
Recurrent laryngeal
Which of the following best represents the structure on the crown of the maxillary canine which normally lies directly distal to the mesiolingual fossa?
Lingual ridge
Distal fossa
Distolingual fossa
Distal marginal ridge
Mesial marginal ridge
Which of the following organisms causes a granulomatous, tuberculosis-like infection?
Aspergillus fumigatus
Microsporum audouini
Histoplasma capsulatum
Epidermophyton floccosum
Trichophyton schoenleinii
Stimulation of the posterior hypothalamus by a reduction in core temperature will produce which of the following?
Panting
Sweating
Vomiting
Shivering
Vasodilation
Each of the following structures is found in the posterior mediastinum EXCEPT one. Which one is this EXCEPTION?
Vagus nerve
Phrenic nerve
Thoracic duct
Greater splanchnic nerve
Sympathetic ganglia
When an adult with normal occlusion moves the mandible from maximum intercuspation to right lateral relation, which of the following cusps of maxillary left teeth moves through the facial embrassure between the mandibular left premolars?
Lingual First premolar
Facial second premolar
Lingual second premolar
Mesiofacial first molar
Distofacial First molar
A patient has a periapical abscess and a history of hypersensitivity to penicillin. Which of the following antimicrobial agents might be the preferred alternative for this patient?
Amoxicillin
Azithromycin
Tetracycline
Cephalosporin
Nystatin
Which of the following compounds is a precursor of the pigmets of the skin, hair, and eyes?
Tyrosine
Cysteine lysine
Creatine
Galactosamine
Intelligence and sensory-motor functions of a patient appear to be intact. However, the patient lacks self-discipline and has exhibited anti-social behavior. He is unable to plan for the future or to organize behaviors into logical sequences. A lesion in which of the following areas is likely?
Frontal lobe
Occipital lobe
Internal capsule
Temporal lobe
Parietal lobe
Which of the following organs secretes insulin-like growth factor 1 (IGF-1), and what stimulates this secretion?
Anterior pituitary, increasing IGF-RH in the blood
Anterior pituitary, increasing GRH in the blood
Kidney, increasing growth hormone in the blood
Liver, increasing growth hormone in the blood
Liver, increasing TSH in the blood
Edema as a result of a hemodynamic disorder commonly occurs in each of the following locations EXCEPT one. Which one is this EXCEPTION?
Lungs
Brain
Subcutaneous tissues
Peritoneal cavity
Pancrease
The tissue present between the articulating bones of the temporomandibular joint is called the
Articular disc
Fibrous capsule
Synovial membrane
Joint capsule
Bilaminar zone
The progression from a healthy gingival sulcus to gingivitis is associated with a shift towards
Gram-positive cocci
Gram-negative anaerobic rods
Gram-positive filamentous rods
Gram-negative anaerobic cocci
Gram-positive facultative cocci
Which of the following enzymes sythesizes polynucleotide chains from nucleotides and does NOT require a primer chain?
Ligase
Exonuclease
Endonuclease
DNA polymerase
RNA polymerase
Which of the following structures travels just posterior to the arch of the azygos vein?
Hemiazygos vein
Right vagus nerve
Left vagus nerve
Right lymphatic duct
Greater splanchnic nerve
An infeciton spreading by way of the lymphatic system from the vermiform appendix first enters the blood stream at the
Renal vein
Appendicular vein
Inferior vena cava
Brachiocephalic vein
Internal thoracic vein
Which of the following describes a major effect of sickle cell anemia?
Absence of biphosphoglycerate binding of hemoglobin
Substitution of 2 proximal histidines
Decreased solubility of the deoxy form of hemoglobin
A P50 value for hemoglobin similar to that of myoglobin
Decreased number of subunits in hemoglobin

 

[dentindi]

The posterior belly of the digastric is supplied by which of the following nerves?
Vagus
Facial
Trigeminal
Cervical spinal
Inferior alveolar

Which of the following pairs of amino acids is expected to be found on the interior of a globular protein?
Lysine and arginine
Arginine and leucine
Leucine and valine
Valine and glutamic acid
Glutamic acid and lysine

Which of the following conditions might be an initial manifestation of early, acute HIV infection?
Kaposi’s sarcoma
Wasting syndrome
Oral hairy leukoplakia
Monoeucleosis-like syndrome
Pneumocystis carinii pneumonia

Which of the following primary teeth has a distinctly prominent facial cervical ridge that makes it different from other teeth?
Maxillary canine
Mandibular canine
Mandibular first molar
Maxillary second molar
Maxillary central incisor

An anemic individual is expected to have which of the following conditions in systemic arterial blood?
O2 tension o2 content
Elevated Normal
Elevated Reduced
Reduced Normal
Normal Reduced
Reduced Reduced

In the presence of sucrose, Streptococcus mutans produces
L-forms
Very long chains of cocci
Regular diploid paris rather than chains
Deposits of a gummy polysaccharide called glucan
A very thick wall of muramic acid and mucopeptide substances

Which of the following properties do mast cells and basophils have in common?
Found in blood
Develop from lymphocytes
Secrete heparin and histamine
Decrease during time of infection
Migrate to line the inside of blood vessels

Protein and RNA synthesis occur in each of the following phases of the cell cycle EXCEPT one. Which one is this EXCEPTION?
G0
G1
S
G2
M

Each of the following is attributable to hepatic failure EXCEPT one. Which one is this EXCEPTION?
Tremor
Gynecomastia
Mallory bodies
Hypoalbuminemia
Spider telangiectasia

As viewed from the lingual, the lingual cusp of a maxillary first premolar is inclined
Distally
Mesially
Distofacially
Mesiolingually
Directly over the center mesiodistally

Gram-positive cell walls differ form gram-negative cell walls in that gram-positive cell walls uniquely contain
Teichoic acids
Lipopolysaccharides
Acid-fast lipids
Endotoxins

The main route of calcium excretion from a normal human adult is
Urine
Sweat
Saliva
Feces
Tears

The parotid duct crosses the
Temporalis
Facial artery
Masseter muscle
Zygomaticus major
Lateral pterygoid

The cusp of Carabelli occurs with sufficient frequency to be considered normal in which of the following molars?
Primary maxillary first
Primary maxillary second
Mandibular first
Maxillary second

Which of the following temporomandibular joint ligaments restricts the movement of the disc away from the condyle during function?
Discal
Stylomandibular
Temporomandibular
Sphenomandibular

A patient who has anemia, poorly localized abdominal pain, and wrist and foot drop probably is manifesting a toxic state induced by which of the following?
Heroin
Cocaine
Bismuth
Mercury
Lead

Which of the following is a ketone body?
Glycerol
Glucagon
Acetyl CoA
Acetoacetate
Phophatidylcholine

Inorganic crystals in enamel have their long axes parallel to the rods in which of the following?
Centers of the bodies of the rods only
Periphery of the bodies of the rods only
Bodies of the rods and deviating increasingly in the tails
Tails of the rods and deviating increasingly from the centers of the bodies to the periphery
Tails of the rods and deviating increasingly from the periphery of the bodies to the centers
#220 (Also 206) does not have the needed picture


The presence of mamelons in a 10-year-old patient suggests which of the following conditions?
Fluorosis
Malnutrition
Malformation
Anterior open bite
Retained primary teeth

Which of the following pathogens is MOST often associated with infective endocarditis?
Pneumococci
Group A streptococci
Group B streptococci
Alpha hemolytic streptococci
Beta hemolytic streptococci

Which of the following coenzymes is required for the synthesis of pyrimidines, such as thymine?
Niacin
Thiamine
Folic acid
Riboflavin
Pyridoxine

Each of the following venous channels has direct connections with the pterygoid venous plexus EXCEPT one. Which one is this EXCEPTION?
Maxillary vein
Vertebral artery
Deep facial vein
Infraorbital vein
Posterior superior alveolar vein

Vitamin C deficiency primarily affects which of the following tissues?
Hematopoietic
Connective
Epithelial
Muscular
Nervous

In the upper limb, which of the following represents a hallmark of lymphatic vessels?
Contain valves
Follow the veins
Always travel in pairs
Only found on the anterior surface of the limb
Contain fenestrations to allow passage of fluids into the interstitium

When viewed from the incisal aspect, each of the following features of an incisor is visible EXCEPT one. Which one is this EXCEPTION?
Cingulum
Lingual fossa
Cervical line
Marginal ridges
Mesiofacial developmental depression

Each of the following is expected to be active during fatty acid biosynthesis EXCEPT one. Which one is this EXCEPTION?
Tricarboxylic acid cycle
Pyruvate dehydrogenase
Amino acid catabolism
Beta oxidation
Glycolysis

Pain in inflamed tissues is associated with the release of which of the following mediators?
Histamine
Serotonin
Bradykinin
Leukotrienes
Complement components

Which of the following cranial nerves contains parasympathetic components?
Facial
Abducens
Trigeminal
Hypoglossal
Spinal accessory

In an ideal intercuspal position, the mesiofacial groove of a mandibular first molar opposes which part of the maxillary first molar?
Tip of the distofacial cusp
Tip of the mesiofacial cusp
Triangular ridge of the distofacial cusp
Triangular ridge of the mesiofacial cusp

Which of the following represents genes that often encode proteins necessary for antibiotic resistance, and that can change positions on a chromosome or “jump” from a plasmid to a chromosome?
Tryptophan operon
Lysogens
Prophage
Transposons

Which of the following BEST describes the major funtion of histones?
Unwind DNA
Activate genes
Stabilize DNA in a compact form
Remove exons during RNA splicing
Stabilize RNA during transcription

The thyrocervical trunk is comprised of the inferior thyroid, the transverse cervical artery, and the
Vertebral
Suprascapular
Dorsal scapular
Superior thyroid
Ascending pharyngeal

Under physiologic conditions, the LOWEST partial pressure of oxygen is found in
Expired air
Alveolar air
Venous blood
Arterial blood
Normal atmosphere air

The condyle on the laterotrusive side generally rotates about a
Sagittal axis only
Horizontal axis only
Horizontal axis and translates laterally
Vertical axis and translates laterally

Each of the following diseases is transmitted from person to person by droplets or droplet spray EXCEPT one. Which one is this EXCEPTION?
Condyloma acuminatum
Whooping cough
Meningitis
Diptheria
Pneumonia

Which of the following bones forms the roof of the orbit?
Zygomatic
Maxilla
Palatine
Sphenoid
Frontal

Which of the following describes sebaceous glands of the skin?
They are associated with hair follicles and are derived from ectoderm
They serve a secretory function in conjuction with Pacinian corpuscles
They secrete a serous material by the merocrine method
They yield a salty secretion and are derived from mesoderm

The first step in the pathway for fatty acid synthesis is catalyzed by an allosteric enzyme which is the principal regulator of the pathway. This enzyme is
Thiolase
Pyruvate carboxylase
Citrate synthetase
Acetyl CoA carboxylase
Pyruvate dehydrogenase

Which of the following is a major disadvantage of ethylene oxide sterilization?
Difficult to obtain
Very toxic to humans
Requires high temperatures (160)
Causes corrosion of metal instruments
Causes discoloration of clear plastic objects

What teeth occlude with only one opposing tooth?
Maxillary canines
Mandibular lateral incisors
Mandibular central incisors
Maxillary first premolars
Mandibular third molars

Endochondral ossification occurs in the formation of
All bones
Flat bones
Long bones
Elastic cartilage
Mesenchymal sheets

Which of the following represents the MOST common cause of bronchiolitis and pneumonia in infants?
Measles virus
Cytomegalovirus
Influenza virus
Herpes simplex virus
Respiratory syncytial virus

The developmental groove between the distofacial cusp and distal cusp of a mandibular first molar is the
Facial
Distal
Distofacial
Mesiofacial
Distal oblique

Which of the following represents the anterior boundary of the mandibular fossa of the temporal bone?
Styloid process
Articular eminence
Petrotympanic fissure
External auditory meatus
Mastoid process of temporal bone

The development of which of the following types of hepatitis depends on the host having been previously infected with hepatitis B virus?
Hepatitis A
Hepatitis C
Hepatitis D
Hepatitis E
Hepatitis G

Glucose-6-phosphatase is found associated with which of the following?
Kidneys and liver
Liver and muscle
Kidneys and brain
Kidneys and muscles

The osteoclast originates from which of the following?
Monocyte
Osteocyte
Osteoblast
Neutrophil
Bone-lining cell

Which of the following permanent roots is thin mesiodistally, wide faciolingually, and concave on both mesial and distal surfaces?
Maxillary central incisor
Mandibular central incisor
Mandibular second premolar
Facial root of a maxillary first premolar
Lingual root of a maxillary first molar

The catabolism of which of the following results in no energy production in the form of ATP?
Lipid
Protein
Nucleotide
Carbohydrate

Recovery from an infection with mumps virus confers lifelong immunity. This describes which of the following types of immunity?
Innate
Natural active
Natural passive
Artificial active
Artificial passive

Which of the following represents the structure in the maxillary alveolar bone that maxillary premolar roots occasionally penetrate?
Antrum
Nasal septum
Frontal sinus
Zygomatic arch
Mandibular fossa

The mylohyoid ridge (line) is found on which of the following portions of the mandible?
Coronoid
Neck
Ramus
Condyle
Body

Which of the following represents the portion of the bacterial endotoxin molecule that is MOST responsible for its toxic activity?
Lipid A
Protein A
O antigen
Core polysaccharide

Which of the following BEST describes restriction enzymes?
Exonucleases
Topoisomerases
Enzymes that degrade RNA
Non-specific endonucleases
Site-specific endonucleases

The contact areas of anterior teeth are incisal to the middle thirds in each of the following EXCEPT one. Which one is this EXCEPTION?
Distal contact of the maxillary canine
Mesial contact of the maxillary canine
Mesial contact of the maxillary lateral incisor
Mesial contact of the mandibular lateral incisor
Distal contact of the mandibular lateral incisor

Proteins for extracellular use can be synthesized in which of the following structures?
Nucleolemma
Mitochondria
Heterochromatin
Rough endoplasmic reticulum
Smooth endoplasmic reticulum

Which of the following types of blotting can be used to identify DNA restriction fragments?
Eastern
Southern
Northern
Western

The unique amino acid composition of collagen is reflected in the hgih content of
Valine, threonine, an lysine
Demosine, glycine, and proline
Cysteine, tyrosine, and phenylalanine
Glycine, proline, and hydroxyproline
Cysteine, hydroxylysine, and praline

Which of the following represents the type of maxillofacial bone graft having the BEST chance of success?
Isograft
Homograft
Allograft
Autograft
Xenograft

Which of the following represents a risk factor for the development of endometrial carcinoma?
Herpes simplex virus infection
Endometriosis
Multiple leiomyomas
Multiple pregnancies
Hyperestrogenism

Which of the following vitamins is essential for the normal elaboration and maintenance of bone matrix, cartilage, and dentin?
Niacin
Vitamin E
Ascorbic acid
Pantothenic acid

Calcium stimulates muscle contraction. Its effect is mediated through binding to which of the following?
Actin
Tropomyosin
Tropinin I
Troponin C
Sarcoplasmic reticulum

Which of the following features helps to distinguish a maxillary lateral incisor from a mandibular lateral incisor? The maxillary lateral has
A thinner incisal ridge
A crown more twisted on the root
A more pronounced lingual fossa
A root that is flattened mesiodistally
A mesioincisal angle that is sharper
SEE #266 In booklet (picture)

Which of the following produce surfactant?
Monocytes
Clara cells
Goblet cells
Type I pneumocytes
Type II pneumocytes

Each of the following fluids is considered one that can transmit HIV EXCEPT one. Which one is this ESCEPTION?
Semen
Serum
Saliva
Amniotic fluid
Breast milk

When compared to a maxillary first molar, the roots of a maxillary second molar
Are longer
Are more divergent
Are fewer in number
Have less potential for fusion
Are greater in distal inclination

In right laterotrusive movement, the lingual cusp of a maxillary right second premolar passes through which of the following mandibular structures?
Facial groove of the right first molar
Lingual groove of the right first molar
Embrassure between the right first premolar and the right second premolar
Embrassure between the right second premolar and the right first molar

Which of the following is the MOST appropriate sterilization method for a heat-labile item to be used in a surgical procedure?
Dry heat
Autoclaving
Ethylene oxide
Saturated chemical vapor
Immersion in chemical sterilant
The primary function of the anterior portion of the temporalis muscle is to
Elevate the mandible only
Protrude the mandible only
Elevate and retrude the mandible
Help stabilize the articular disc
Move the mandible to the contralateral side

Bile salts are sodium salts of bile acid that are conjugated with
Cysteine and serine
Taurine and glycine
Methionine and lysine
Homocysteine and ornithine

In order for RNA oncogenic viruses to be integrated into the host genome, they must possess
Translation enzymes
Restriction endonuclease
DNA-dependent RNA polymerase
RNA-dependent DNA polymerase

On the lingual crown surface of maxillary canines, which of the following is the structure located immediately mesial to the distolingual fossa?
Cingulum
Lingual ridge
Mesiolingual fossa
Mesial marginal ridge
Distal marginal ridge

In which of the following structures are glycoproteins assembled for extracellular use?
Nucleolemma
Polyribosomes
Golgi apparatus
Rough endoplasmic reticulum
Smooth endoplasmic reticulum

Which of the following statements BEST describes the strength of cardiac muscle contraction? It is
Decreased when extracellular Ca is increased
Increased when extracellular Ca is increased
Mainly regulated by vagal impulses
Unaffected by extracellular Ca
Mainly regulated by heart rate

Oxygen-dependant killing of bacteria by neutrophils involves each of the following EXCEPT one. Which one is this EXCEPTION?
Superoxide
Collagenase
Myeloperoxidase
Hydrogen peroxide
NADP dehydrogenase

Which of the following are the teeth whose masticatory function is primarily biting?
Incisors and canines
Incisors and premolars
Canines and premolars
Premolars and molars

Which of the following represents the predominant serum immunoglobulin found during a memory response?
IgA
IgD
IgE
IgG
s-IgA

Which of the following mechanisms operates in liver cells to regulate breakdown of glycogen?
Zymogen activation
Phophorylation of phosphorylase b to phosphorylase a
Induction of phosphorylase b by an inducer
Inhibition of adenylate cyclase

Which of the following structures can be palpated by way of the external auditory (acoustic) meatus?
Zygomatic arch
Mandibular notch
Lateral pterygoid muscle
Coronoid process of the mandible
Posterior aspect of the mandibular condyle

Which main product of protein nitrogen metabolism is found in human urine?
Urea
Ammonia
Creatine
Uric acid
Creatinine

Which of the following nerves travels form the carotid triangle into the submandibular triangle of the neck?
Lingual
Hypoglossal
Great auricular
Ansa cervicalis
Recurrent laryngeal

Which of the following best represents the structure on the crown of the maxillary canine which normally lies directly distal to the mesiolingual fossa?
Lingual ridge
Distal fossa
Distolingual fossa
Distal marginal ridge
Mesial marginal ridge

Which of the following organisms causes a granulomatous, tuberculosis-like infection?
Aspergillus fumigatus
Microsporum audouini
Histoplasma capsulatum
Epidermophyton floccosum
Trichophyton schoenleinii

Stimulation of the posterior hypothalamus by a reduction in core temperature will produce which of the following?
Panting
Sweating
Vomiting
Shivering
Vasodilation

Each of the following structures is found in the posterior mediastinum EXCEPT one. Which one is this EXCEPTION?
Vagus nerve
Phrenic nerve
Thoracic duct
Greater splanchnic nerve
Sympathetic ganglia

When an adult with normal occlusion moves the mandible from maximum intercuspation to right lateral relation, which of the following cusps of maxillary left teeth moves through the facial embrassure between the mandibular left premolars?
Lingual First premolar
Facial second premolar
Lingual second premolar
Mesiofacial first molar
Distofacial First molar

A patient has a periapical abscess and a history of hypersensitivity to penicillin. Which of the following antimicrobial agents might be the preferred alternative for this patient?
Amoxicillin
Azithromycin
Tetracycline
Cephalosporin
Nystatin

Which of the following compounds is a precursor of the pigmets of the skin, hair, and eyes?
Tyrosine
Cysteine lysine
Creatine
Galactosamine

Intelligence and sensory-motor functions of a patient appear to be intact. However, the patient lacks self-discipline and has exhibited anti-social behavior. He is unable to plan for the future or to organize behaviors into logical sequences. A lesion in which of the following areas is likely?
Frontal lobe
Occipital lobe
Internal capsule
Temporal lobe
Parietal lobe

Which of the following organs secretes insulin-like growth factor 1 (IGF-1), and what stimulates this secretion?
Anterior pituitary, increasing IGF-RH in the blood
Anterior pituitary, increasing GRH in the blood
Kidney, increasing growth hormone in the blood
Liver, increasing growth hormone in the blood
Liver, increasing TSH in the blood

Edema as a result of a hemodynamic disorder commonly occurs in each of the following locations EXCEPT one. Which one is this EXCEPTION?
Lungs
Brain
Subcutaneous tissues
Peritoneal cavity
Pancrease

The tissue present between the articulating bones of the temporomandibular joint is called the
Articular disc
Fibrous capsule
Synovial membrane
Joint capsule
Bilaminar zone

The progression from a healthy gingival sulcus to gingivitis is associated with a shift towards
Gram-positive cocci
Gram-negative anaerobic rods
Gram-positive filamentous rods
Gram-negative anaerobic cocci
Gram-positive facultative cocci

Which of the following enzymes sythesizes polynucleotide chains from nucleotides and does NOT require a primer chain?
Ligase
Exonuclease
Endonuclease
DNA polymerase
RNA polymerase

Which of the following structures travels just posterior to the arch of the azygos vein?
Hemiazygos vein
Right vagus nerve
Left vagus nerve
Right lymphatic duct
Greater splanchnic nerve

An infeciton spreading by way of the lymphatic system from the vermiform appendix first enters the blood stream at the
Renal vein
Appendicular vein
Inferior vena cava
Brachiocephalic vein
Internal thoracic vein

Which of the following describes a major effect of sickle cell anemia?
Absence of biphosphoglycerate binding of hemoglobin
Substitution of 2 proximal histidines
Decreased solubility of the deoxy form of hemoglobin
A P50 value for hemoglobin similar to that of myoglobin
Decreased number of subunits in hemoglobin